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Articles de revues sur le sujet « Microthyriaccae »

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Auteur : Grafiati

Publié le 25 juillet 2024

Mis à jour le 26 juillet 2024

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Wu, Hai X., Conrad L. Schoch, Saranyaphat Boonmee, Ali H. Bahkali, Putarak Chomnunti et Kevin D. Hyde. « A reappraisal of Microthyriaceae ». Fungal Diversity 51, n^o 1 (26 novembre 2011) : 189–248. http://dx.doi.org/10.1007/s13225-011-0143-8.

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Liu, Lingling, Jing Yang, Si Zhou, Xiaofeng Gu, Jiulan Gou, Quanquan Wei, Meng Zhang et Zuoyi Liu. « Novelties in Microthyriaceae (Microthyriales) : Two New Asexual Genera with Three New Species from Freshwater Habitats in Guizhou Province, China ». Journal of Fungi 9, n^o 2 (28 janvier 2023) : 178. http://dx.doi.org/10.3390/jof9020178.

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Microthyriaceae is typified by the sexual genus Microthyrium, with eight asexual genera. Three interesting isolates were collected during our investigation of freshwater fungi from the wetlands in Guizhou Province, southwest China. Three new asexual morphs are identified. Phylogenetic analyses using ITS and LSU gene regions revealed the placement of these isolates in Microthyriaceae (Microthyriales, Dothideomycetes). Based on the morphology and phylogenetic evidence, two new asexual genera, Paramirandina and Pseudocorniculariella, and three new species, Pa. aquatica, Pa. cymbiformis, and Ps. guizhouensis, are introduced. Descriptions and illustrations of the new taxa are provided, with a phylogenetic tree of Microthyriales and related taxa.

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WU, HAI-XIA, QIN TIAN, WEN JING LI et KEVIN D. HYDE. « A reappraisal of Microthyriaceaea ». Phytotaxa 176, n^o 1 (20 août 2014) : 201. http://dx.doi.org/10.11646/phytotaxa.176.1.20.

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Asterinella, Cirsosiopsis, Phragmaspidium, Platypeltella, Trichopeltella, Trichopeltum and Trichothyrinula are poorly known ascomycete genera, presently included in the family Microthyriaceae. In this paper the type species of each of these genera were examined and the taxa are redescribed and illustrated with photomicrographs. The taxonomic placement of each genus and their familial position is discussed. Asterinella and Platypeltella has superficial, flattened thyriothecia and superficial hyphae with hyphopodia; the thyriothecia opens by splitting to release the ascospores and these genera should be placed in Asterinaceae. Cirsosiopsis, has strongly flattened, discoid or pulvinate to elongate, carbonaceous ascomata and is transferred to Parmulariaceae. Phragmaspidium has an upper wall comprising neatly arranged radiating cells; the basal layer is poorly developed and thus the genus should be retained in Microthyriaceae. Trichopeltella, Trichopeltum and Trichothyrinula are foliar epiphytes forming extremely thin, relatively large, brown to black, circular to irregular, or root-like, spreading thalli, which cover the thyriothecia and should be placed in Trichopeltinaceae.

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Wu, HaiXia, YanMei Li, Hiran A. Ariyawansa, WenJing Li, Hui Yang et Kevin D. Hyde. « A new species of Microthyrium from Yunnan, China ». Phytotaxa 176, n^o 1 (20 août 2014) : 213. http://dx.doi.org/10.11646/phytotaxa.176.1.21.

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A new species, Microthyrium propagulensis, collected in Yunnan Province, southwestern China is introduced. The species is typical of Microthyriaceae (Microthyriales) in having superficial thyriothecia with a poorly developed basal layer and a prominent darker central ostiole, bitunicate asci and 1-septate ascospores. It is similar to the generic type, M. microscopicum, but differs in having relatively small ascospores, with two apical cilia, which lie downloads from the ascospore apex at a 45° angle. Phylogenetic analysis based on combined LSU and SSU gene sequence data clearly place this species in Microthyrium, but distinguishes it from Microthyrium microscopicum. This second sequence from a Microthyrium species indicates that the putative sequence of the type of this genus is CBS has been correctly named and supports the distinctiveness of Microthyriales and Microthyriaceae.

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Qiao, Min, Hua Zheng, Ji-Shu Guo, Rafael F. Castañeda-Ruiz, Jian-Ping Xu, Jie Peng, Ke-Qin Zhang et Ze-Fen Yu. « Two new asexual genera and six new asexual species in the family Microthyriaceae (Dothideomycetes, Ascomycota) from China ». MycoKeys 85 (29 novembre 2021) : 1–30. http://dx.doi.org/10.3897/mycokeys.85.70829.

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The family Microthyriaceae is represented by relatively few mycelial cultures and DNA sequences; as a result, the taxonomy and classification of this group of organisms remain poorly understood. During the investigation of the diversity of aquatic hyphomycetes from southern China, several isolates were collected. These isolates were cultured and sequenced and a BLAST search of its LSU sequences against data in GenBank revealed that the closest related taxa are in the genus Microthyrium. Phylogenetic analyses, based on the combined sequence data from the internal transcribed spacers (ITS) and the large subunit (LSU), revealed that these isolates represent eight new taxa in Microthyriaceae, including two new genera, Antidactylariagen. nov. and Isthmomycesgen. nov. and six new species, Antidactylaria minifimbriatasp. nov., Isthmomyces oxysporussp. nov., I. dissimilissp. nov., I. macrosporussp. nov., Triscelophorus anisopterioideussp. nov. and T. sinensissp. nov. These new taxa are described, illustrated for their morphologies and compared with similar taxa. In addition, two new combinations are proposed in this family.

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Wu, Haixia, Yanmei Li, Hang Chen et Kevin D. Hyde. « Studies on Microthyriaceae : some excluded genera ». Mycotaxon 113, n^o 1 (15 octobre 2010) : 147–56. http://dx.doi.org/10.5248/113.147.

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PEREIRA, O. L., et F. L. R. FILARDI. « CAUDELLA BIPOLARIS SP. NOV. (MICROTHYRIACEAE) ON BREDEMEYERA FLORIBUNDA (POLYGALACEAE) FROM THE BRAZILIAN CERRADO ». Edinburgh Journal of Botany 63, n^o 2-3 (juillet 2006) : 263–67. http://dx.doi.org/10.1017/s0960428606000527.

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Caudella bipolaris sp. nov. (Microthyriaceae), found on leaves of the liana Bredemeyera floribunda Willd. (Polygalaceae) from the Brazilian cerrado, is described and illustrated. This is the fourth known Caudella species and the first reported on a member of the family Polygalaceae. Unique within the genus are the species' bipolar ascospore appendages.

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Bajpai, Usha, et H. K. Maheshwari. « Epiphyllous fungi from the Gondwana ». Journal of Palaeosciences 36 (31 décembre 1987) : 210–13. http://dx.doi.org/10.54991/jop.1987.1580.

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Epiphyllous fungi belonging to Ascomycetes and Deuteromycetes are recorded. Microthyriaceous germlings have been found on the lower cuticle of a Glossopteris species from the basal Barakar sediments of Saharjuri Outlier. Microthyriaceous stromata have been found on the lower cuticle of Thinnfeldia indica Feistmantel and a leaf apparently of Ctenozamites type, both from Early Cretaceous of Cauvery Basin. Mycelia sterilia have also been recorded on the lower cuticle of Thinnfeldia indica. On the basis of the occurrences of Microthyriaceae, a tropical to subtropical climate is deduced for the Early Cretaceous Period of India.

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Mueller, W. C., A. T. Morgham et R. D. Goos. « Ultrastructure of the wall of the hyphal coils of the Microthyriaceae ». Mycological Research 96, n^o 9 (septembre 1992) : 798–800. http://dx.doi.org/10.1016/s0953-7562(09)80451-6.

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TENNAKOON, DANUSHKA S., SINANG HONGSANAN, NIMALI I. DE SILVA, NAKARIN SUWANNARACH et SAISAMORN LUMYONG. « Molecular phylogeny and morphological characterization of Paramicrothyrium bambusae sp. nov. and Tumidispora thailandica sp. nov. from leaf litter ». Phytotaxa 578, n^o 1 (4 janvier 2023) : 112–24. http://dx.doi.org/10.11646/phytotaxa.578.1.6.

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During our ongoing studies of fungal diversity on leaf litter, two exciting species were collected from Thailand. Morphological examination coupled with phylogenetic analyses revealed that our species belongs to Paramicrothyrium and Tumidispora in Microthyriaceae. Maximum likelihood, maximum parsimony, and Bayesian analyses of combined internal transcribed spacer (ITS) and large nuclear subunit ribosomal DNA (LSU) sequence data were performed to clarify the phylogenetic affinities of the species. Based on their distinctive morphological traits and phylogenetic support, the new species Paramicrothyrium bambusae and Tumidispora thailandica were introduced. In addition, the new species were compared with phylogenetically and morphologically closely related species, and detailed descriptions, micrographs, and phylogenetic trees of the new species are provided.

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Pérez-Ortega, Sergio, et Toby Spribille. « Three new species of Lichenopeltella (Microthyriaceae, Ascomycota) from northwest North America ». Nova Hedwigia 89, n^o 1 (1 août 2009) : 219–28. http://dx.doi.org/10.1127/0029-5035/2009/0089-0219.

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Worobiec, Grzegorz, et Elżbieta Worobiec. « Epiphyllous fungi from the Oligocene shallowmarine deposits of the Krabbedalen Formation, Kap Brewster, central East Greenland ». Acta Palaeobotanica 53, n^o 2 (1 décembre 2013) : 165–79. http://dx.doi.org/10.2478/acpa-2013-0014.

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ABSTRACT Fructifications of epiphyllous fungi were encountered during palynological investigation of the Lower Oligocene shallow-marine deposits of the Krabbedalen Formation at the Savoia Halvø, Kap Brewster, central East Greenland. Six fossil taxa from the family Microthyriaceae (Phragmothyrites kangukensis Kalgutkar, Phragmothyrites sp., Plochmopeltinites sp., Trichothyrites cf. ostiolatus (Cookson) Kalgutkar & Jansonius, Trichothyrites sp. 1, and Trichothyrites sp. 2) and one incertae sedis fungal remain are reported. Fungal remains from the Krabbedalen Formation represent the youngest, Oligocene occurrence of the epiphyllous fungi in the Palaeogene of the Arctic. The presence of epiphyllous, microthyriaceous fungi in low quantities and in low taxonomical diversity points to a humid and not necessarily warm climate, which is corroborated by data obtained from the analysis of microscopic plant remains.

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Iturrieta-González, Isabel, Dania García, Josep Guarro et Josepa Gené. « Heliocephala variabilis and Pseudopenidiella vietnamensis : Two New Hyphomycetous Species in the Microthyriaceae (Dothideomycetes) from Vietnam ». Microorganisms 8, n^o 4 (27 mars 2020) : 478. http://dx.doi.org/10.3390/microorganisms8040478.

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In a survey of microfungi from plant debris collected in Vietnam, two new hyphomycetous species were found, which belong to the genera Heliocephala and Pseudopenidiella and the family Microthyriaceae (Microthyriales, Dothideomycetes). Maximum Likelihood and Bayesian Inference sequence analyses of the internal transcribed spacers (ITS) and large subunit (LSU) of the ribosomal DNA barcodes allowed assessing the phylogenetic relationships of the new species with other species of the respective genera. Heliocephala variabilis sp. nov. was closely related to Heliocephala elegans, Heliocephala gracilis, and Heliocephala zimbabweensis, from which it was morphologically distinguished by its smaller conidiophores and non-rostrate conidia of up to four septa on the natural substratum. Pseudopenidiella vietnamensis sp. nov. was related to Pseudopenidiella piceae and Pseudopenidiella podocarpi and differed from the former principally by its lack of microcondiophores and from P. podocarpi by having larger macroconidiophores and smooth conidia. Key morphological features to distinguish the accepted species in Heliocephala and Pseudopenidiella are also provided. In addition, Pseudopenidiella pini was excluded from the genus on the basis of its morphological features.

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Almeida, C., H. Ortega, S. Higginbotham, C. Spadafora, A. E. Arnold, P. D. Coley, T. A. Kursar, W. H. Gerwick et L. Cubilla-Rios. « Chemical and bioactive natural products from Microthyriaceae sp., an endophytic fungus from a tropical grass ». Letters in Applied Microbiology 59, n^o 1 (28 mars 2014) : 58–64. http://dx.doi.org/10.1111/lam.12245.

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Basumatary, S. K., Srikanta Murthy et S. K. Bera. « Modern pollen spectra from Chamrajnagar District of Karnataka, India ». Journal of Palaeosciences 63, n^o (1-2) (31 décembre 2014) : 87–91. http://dx.doi.org/10.54991/jop.2014.323.

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A study on modern pollen rain from the Chamrajnagar District of Karnataka has been documented. The pollen study revealed the dominance of nonarboreals over arboreals. Among the arboreals, Syzygium, Eucalyptus, Meliaceae and Rutaceae are commonly represented taxa in the area. However, among nonarboreals grasses are predominant along with other typical associates namely, Tubuliflorae, Liguliflorae, Mimosa and Euphorbiaceae. The abundance of marshy taxa, viz. Cyperaceae, Polygonaceae and Onagraceae are indicative of the water logged condition in and around the area. The steady presence of cereals along with other cultural pollen, like Chenopodiaceae and Lamiaceae is strongly suggestive of the arable activity in the area. The occurrence of degraded pollen–spore along with adequate fungal elements especially Meliola, Microthyriaceae and Glomus is suggestive of aerobic microbial digenesis of rich organic debris during sedimentation. The studied palynodata will be helpful for the precise palaeoecological study in and around the study area.

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Hongsanan, Sinang, Putarak Chomnunti, Pedro W. Crous, Ekachai Chukeatirote et Kevin D. Hyde. « Introducing Chaetothyriothecium, a new genus of Microthyriales ». Phytotaxa 161, n^o 2 (24 février 2014) : 157. http://dx.doi.org/10.11646/phytotaxa.161.2.7.

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The order Microthyriales comprises foliar biotrophs, epiphytes, pathogens or saprobes that occur on plant leaves and stems. The order is relatively poorly known due to limited sampling and few in-depth studies. There is also a lack of phylogenetic data for these fungi, which form small black spots on plant host surfaces, but rarely cause any damage to the host. A "Microthyriaceae"-like fungus collected in central Thailand is described as a new genus, Chaetothyriothecium (type species Chaetothyriothecium elegans sp. nov.). Phylogenetic analyses of LSU gene data showed this species to cluster with other members of Microthyriales, where it is related to Microthyrium microscopicum the type of the order. The description of the new species is supplemented by DNA sequence data, which resolves its placement in the order. Little molecular data is available for this order, stressing the need for further collections and molecular data.

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Bera, S. K., S. K. Basumatary et R. Gogoi. « Evidence of deterioration in phytodiversity of Itanagar Wildlife Sanctuary, Arunachal Pradesh, India based on palynological evidence ». Journal of Palaeosciences 63, n^o (1-2) (31 décembre 2014) : 33–40. http://dx.doi.org/10.54991/jop.2014.319.

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The pollen–spore assemblage and their preservation status study based on 25 surface samples from different sites of Itanagar Wildlife Sanctuary, Arunachal Pradesh is documented. The survey was based on 25 surface samples from different sites of the sanctuary with a view to assess actual status of pollen preservation. The pollen assemblage depicts predominance of the nonarboreals over arboreals which do not fully match the present vegetation of the sanctuary. However, the occurrence and relative abundance of both deciduous and wet evergreen forest complex though in low frequency are of great significance towards its existence. Arecaceae pollen probably belongs to Arenga and Livistona despite their absence in surrounding vegetation. The presence of cerealia and other cultural pollen, viz. Chenopodiaceae and Xanthium are suggestive of the anthropogenic activity in and around the study area. The enhanced fern allies especially Osmunda, Cheilanthes, Gleichenia, Dipteris and Pteris pentagyna are supposed to be of subtropical–temperate in origin coupled with fungal complex (Glomus, Xylaria and Microthyriaceae) indicate humid depositional environment in the basin. Prevalence of rich organic matters festooned with fungal remains may be attributed due to relatively higher rates of weathering and erosion of the hinterland influenced by enhanced SW monsoon during the time of deposition. The incidence of degraded palynomorphs indicates aerobic microbial diagenesis of rich organic debris during sedimentation. The overall palynological result hints a deteriorating scenario of wildlife sanctuaries and associated region in recent times.

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